Spiral chute



, P. C. WEGO SPIRAL CHUTE.

APPLICATION FILED SEPT. a, 1919.

1 ,353,873. Patented Sept. 28,1920.

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PETER c, wneo, or sr. PAUL, MINNESOTA.

SPIRAL CHUTE.

Specification of Letters Patent.

Patented Sept. 28, 1920.

Application filed. September 8, 1919. Serial No. 322,341.

To all whom it may concern Be it known that I, PETER C. Waco, citizen of the United States, residin at St. Paul, in the county of Ramsey and state of Minnesota, have invented new and useful Improvements in Spiral Chutes, of which the following is a specification.

My invention relates to improvements in spiral chutes.

My object is to adapt such a chute for use in slaughter houses, packing plants and other places where heavy and perishable products are to behandled.

A further object is to so construct the joints between the parts of the chute that they shall neither tear the meat passing over them nor present unsanitary rough joints in which particles of flesh may accumulate.

In the drawings Figure 1 is an elevation of my device. Fig. 2 is a sectional detail showing the union between the outer edge of a wing of the slideway and the guard rail. Fig. 3 is a. sectional detail on tie l ne 3-3 of F ig. 2, and shows the radial joint between overlapping sections or wings of the spiral.

My spiral chute comprises the central column or support A, the slideway sections or wings B and the guard rail 0. The slideway sections are substantially identical, and may be united with the central column A in any suitable manner, that shown in the drawing being flanges 10 attached to the column by means of bolts 11. The outer edges of the sections or wings B are formed with flanges 12 turned at substantially right angles to the slideway and connected with the guard rail 0 by means of bolts 13;. The union of the upper surface of the slideway with the inner surface of the guard rail is pointed or filled with solder 15, so as to present a smooth concave surface at the outer edge of the slideway. Each shdeway section B overlaps the section below it. The overhanging lips 16 are formed by folding the sheet metal directly under and parallel with its upper surface, as clearly shown in Fig. 3, and then turning the metal down at right angles to form a flange 17, which fits against an ordinary right angle flange 18 on the underlying surface of the next lower section. The flanges l7 and 18 are perforated and held together by means of bolts 19. It will thus be seen that the upper or deck surface of the joint thus formed is perfectly smooth, being entirely free from cutting or gouging edges, as well as from irregular interstices, in which (in other constructions) particles of meat frequently accumulate. My construction also eliminates a common cause of deterioration in chutes of this character, due to corrosion of rivets, portions of which are usually exposed on the slide deck of the chute. It is also obvious that the fold formed on the overlaping edge of the wings results in. a substantial reinforcement of the whole structure and this adapts it to handle heavier objects.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. In a spiral chute the combination, with a central supporting column and an outer guard rail, of a slideway consisting of sections, each of which is formed with a folded overlapping lip and a right angled flange, the underlying edge of the adjacent section being also formed with a right angled flange, and means for connecting said flanges on adjacent sections.

2. In a spiral chute the combination, with a central supporting column and an outer guard rail, of a. slideway consisting of overlapping sections, each of which is formed with a folded lip adapted to overlap an adjacent section, a concave filler between the outer edges of said sections and the guard rail, and means for connecting said adjacent sections.

3. In a spiral chute the combination, with a central supporting column and guard rail, of an intermediate slideway formed by overlapping sections, each of which is provided with a folded lip and a ight angled flange, the underlying edge of the next lower section being also formed with a right angled flange, a concave filler between the slideway and guard rail and means for connecting said flanges of adjacent sections.

4. In a spiral chute the combination, with 7 a supporting column, of a slideway consisting of a plurality of similar sections, each of which is formed with a folded overlapping lip and an extension of the lower fold of said lip forming a dependent flange, the

10 underlying edge of the adjacent section being also formed with a dependent flange,

and means for connecting said flanges on adjacent sections.

In Witness whereof, I have hereunto signed my name to this specification.

PETER G. WEGO.

W'tnesses E. T. PETERSON, 'J. E. STRYKER. 

